Warning: Creating default object from empty value in /homepages/11/d132647312/htdocs/Amfone/mkportal/include/SMF/smf_out.php on line 47
Crystal Cal Circuit for Vintage Receivers




 
The AM Forum
January 23, 2021, 06:44:18 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Crystal Cal Circuit for Vintage Receivers  (Read 1142 times)
0 Members and 1 Guest are viewing this topic.
WA4WAX
Member

Offline Offline

Posts: 318


« on: October 15, 2015, 10:25:04 PM »

Need one?  Try this one.  I dig the neon modulator!

Page 139



http://americanradiohistory.com/Archive-Electronics-World/60s/1960/Electronics-World-1960-10.pdf


Matt
Logged
MikeKE0ZUinkcmo
Member

Offline Offline

Posts: 399



« Reply #1 on: October 16, 2015, 07:56:07 PM »

A similar circuit, called a "whistle stop" was a common modification for crystal controlled Aircraft transmitters in the 50s and early 60s.   It allowed the pilot to simply switch on the whistle stop switch and tune the receiver to the transmit frequency.   Much simpler than hunting for the desired tower, FSS, intercom, or ground control frequency.   Works well.

 
Logged

Mike KE0ZU

Bold Text and PICS are usually links

https://mikeharrison.smugmug.com/
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.041 seconds with 19 queries.